CN213519840U

CN213519840U - Arc extinguish chamber structure of low-voltage circuit breaker

Info

Publication number: CN213519840U
Application number: CN202022906172.9U
Authority: CN
Inventors: 余青
Original assignee: Wuhan Huili Electric Power Technology Co ltd
Current assignee: Wuhan Huili Electric Power Technology Co ltd
Priority date: 2020-12-05
Filing date: 2020-12-05
Publication date: 2021-06-22
Anticipated expiration: 2030-12-05

Abstract

The utility model provides a low-voltage circuit breaker arc extinguish chamber structure, which belongs to the technical field of circuit breaker structures, and comprises a shell, wherein an arc extinguish chamber is arranged inside the shell, a bottom plate is arranged at the bottom of the arc extinguish chamber, side plates are arranged at two sides of the arc extinguish chamber, an arc striking plate is arranged at the top of the arc extinguish chamber, a plurality of groups of arc extinguishing grid pieces are arranged in the arc extinguish chamber, a plurality of power supply connecting seats are arranged outside the arc extinguish chamber, a current conducting plate is arranged in each power supply connecting seat, an insulating baffle is arranged between the power supply connecting seats, a power supply chamber is arranged at the front end of the arc extinguish chamber, the power supply chamber is fixedly connected with the arc extinguish chamber through a buckle, a control chamber is arranged at the front end of the power supply chamber, a control switch is arranged on the control chamber, a, and harmful effects on the circuit breaker and human bodies when the electric arc flees outwards are eliminated.

Description

Arc extinguish chamber structure of low-voltage circuit breaker

Technical Field

The utility model belongs to the technical field of the circuit breaker structure, concretely relates to low-voltage circuit breaker explosion chamber structure.

Background

The low-voltage circuit breaker, an important element in low-voltage electrical appliances, is used for connecting and disconnecting the current in a power grid circuit and has multiple protection functions. When fault current occurs in a circuit and the current value exceeds a certain protection setting range, moving and static contacts in the circuit breaker can be quickly opened, electric arcs are generated between the contacts, an arc extinguishing device is usually arranged in the moving direction of the electric arcs, the electric arcs can be slightly stagnated when being generated, the electric arcs move to a group of arc isolating grid pieces along arc striking pieces under the influence of a magnetic field and aerodynamic force in the arc extinguishing device and are divided into a plurality of short arcs by a plurality of grid pieces, the electric arcs are reduced, the voltage is rapidly increased, and the electric arcs are extinguished.

The structure of assembling about all adopting of current circuit breaker arc control device, the multiunit separates the arc bars piece and hardly aims at the groove that falls during assembling, and the installation is difficult, and the piece that is in the arc control device top after assembling exposes outside this body of circuit breaker completely, still can appear a great deal of defects such as piece dislocation sometimes.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low-voltage circuit breaker explosion chamber structure aims at solving the circuit breaker arc control device among the prior art and all adopts about to assemble the structure, and multiunit arc-isolating grid piece is difficult to aim at the groove that falls when assembling, and the installation difficulty is assembled the piece that is in the arc control device top and is exposed outside this body of circuit breaker completely, can also appear the problem of a great deal of defects such as piece dislocation sometimes.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a low-voltage circuit breaker explosion chamber structure, includes the casing, the inside of casing is equipped with the explosion chamber, the bottom of explosion chamber is equipped with the bottom plate, the both sides of explosion chamber are equipped with the curb plate, the top of explosion chamber is equipped with the run-on plate, be equipped with multiunit arc extinguishing bars piece in the explosion chamber, and multiunit arc extinguishing bars piece is located between bottom plate and the run-on plate, the outside of explosion chamber is equipped with a plurality of power connecting seats, be equipped with the current conducting plate in the power connecting seat, be equipped with insulating barrier between a plurality of power connecting seats, the front end of explosion chamber is equipped with the power supply room, the power supply room passes through buckle and explosion chamber fixed connection, the front end of power supply room is equipped with the control room, be equipped with control switch on the control room, control switch's below is equipped with casing switch, casing, Reliable, and the arc extinguishing is quick thorough, and filtration, cooling heat dissipation are abundant, improve low voltage circuit breaker breaking performance, eliminate when electric arc flees outward to circuit breaker and the harmful effect of the person.

As an optimization, multiunit arc extinguishing bars piece is parallel to each other, and forms the arc extinguishing cavity between the arc extinguishing bars piece.

As a preferred, the both sides of casing are opened has a plurality of louvres, and are located the outside of explosion chamber.

As an optimization of the present invention, the electronic components inside the arc extinguish chamber, the power supply chamber and the control chamber are all connected by a conductor and are communicated with each other.

As an optimization of the present invention, the housing is made of an insulating material, and the top end and the bottom end of the housing are provided with an insulating layer.

As an optimization of the present invention, the conductive plate is provided with a plurality of connecting holes, and the connecting holes have the same size.

Compared with the prior art, the beneficial effects of the utility model are that:

the scheme is that firstly, the arc extinguish chamber is arranged in the shell, then the bottom plate is arranged at the bottom of the arc extinguish chamber, then the side plates are arranged at two sides of the arc extinguish chamber, then the arc striking plate is arranged at the top of the arc extinguish chamber, a plurality of groups of arc extinguishing grid pieces are arranged in the arc extinguish chamber and are positioned between the bottom plate and the arc striking plate, then a plurality of power supply connecting seats are arranged outside the arc extinguish chamber, then the conducting plate is arranged in the power supply connecting seats, then the insulating baffle plate is arranged among the power supply connecting seats, the power supply chamber is arranged at the front end of the arc extinguish chamber and is fixedly connected with the arc extinguish chamber through a buckle, and then the control chamber is arranged at the front end of the power supply chamber, so that the self assembly of the arc extinguish structure of the circuit breaker and the assembly with the low-voltage circuit breaker can be convenient, and harmful effects on the circuit breaker and human bodies when the electric arc flees outwards are eliminated.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic main sectional structure diagram of the present invention.

In the figure: 1. a housing; 2. an arc extinguishing chamber; 3. a base plate; 4. a side plate; 5. an arc striking plate; 6. arc extinguishing grid pieces; 7. a power supply connecting seat; 8. a conductive plate; 9. an insulating baffle; 10. a power supply chamber; 11. buckling; 12. a control room; 13. a control switch; 14. a housing switch; 15. a display screen; 16. an arc extinguishing cavity; 17. heat dissipation holes; 18. and connecting the holes.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a low-voltage circuit breaker explosion chamber structure, which comprises a housin 1, the inside of casing 1 is equipped with explosion chamber 2, the bottom of explosion chamber 2 is equipped with bottom plate 3, the both sides of explosion chamber 2 are equipped with curb plate 4, the top of explosion chamber 2 is equipped with arc striking plate 5, be equipped with multiunit arc extinguishing bars piece 6 in the explosion chamber 2, and multiunit arc extinguishing bars piece 6 is located between bottom plate 3 and the arc striking plate 5, the outside of explosion chamber 2 is equipped with a plurality of power connecting seat 7, be equipped with current conducting plate 8 in the power connecting seat 7, be equipped with insulating barrier 9 between a plurality of power connecting seat 7, the front end of explosion chamber 2 is equipped with power supply room 10, power supply room 10 passes through

buckle

11 and 2 fixed connection of explosion chamber, the front end of power supply room 10 is equipped with control room 12, be equipped with control switch 13.

In the embodiment of the present invention, the housing 1 plays a role of protecting the arc extinguish chamber 2 from being damaged easily, the arc extinguish chamber 2 plays a role of arc extinguishing, the arc extinguish chamber 2 is firstly arranged inside the housing 1, then the bottom plate 3 is arranged at the bottom of the arc extinguish chamber 2, then the side plates 4 are arranged at both sides of the arc extinguish chamber 2, then the arc striking plate 5 is arranged at the top of the arc extinguish chamber 2, the bottom plate 3 plays a role of fixing the arc extinguish chamber 2, the side plates 4 play a role of protecting the arc extinguish chamber 2, the arc striking plate 5 plays a role of striking, by arranging a plurality of groups of arc extinguishing grid pieces 6 inside the arc extinguish chamber 2, and a plurality of groups of arc extinguishing grid pieces 6 are arranged between the bottom plate 3 and the arc striking plate 5, then a plurality of power supply connecting seats 7 are arranged outside the arc extinguish chamber 2, then the conductive plate 8 is arranged in the power, the arc extinguishing grid 6 plays a role of arc extinguishing, the power supply connecting seat 7 plays a role of fixing the conductive plate 8, the conductive plate 8 plays a role of connecting an external power supply, the insulating baffle 9 plays a role of protecting the shell 1, the power supply chamber 10 is arranged at the front end of the arc extinguishing chamber 2, the power supply chamber 10 is fixedly connected with the arc extinguishing chamber 2 through the buckle 11, the control chamber 12 is arranged at the front end of the power supply chamber 10, the control switch 13 is arranged on the control chamber 12, the shell switch 14 is arranged below the control switch 13, the display screen 15 is arranged below the shell switch 14, the power supply chamber 10 plays a role of electrifying, the buckle 11 plays a role of fixedly connecting the power supply chamber 10 and the arc extinguishing chamber 2, the control chamber 12 plays a role of controlling the utility model, the control switch 13 plays a role of controlling the work of the utility model, the shell switch 14 plays a role of opening the shell 1, the display screen 15 plays the effect that shows operating condition, can realize that circuit breaker arc extinguishing structure self equipment reaches with low-voltage circuit breaker's convenient assembling, reliable, and the arc extinguishing is thorough fast, and filtration, cooling heat dissipation are abundant, improve low-voltage circuit breaker breaking performance, eliminate electric arc when scurrying outward to circuit breaker and the harmful effect of the person.

Specifically, referring to fig. 3, a plurality of groups of arc-extinguishing grid plates 6 are parallel to each other, and arc-extinguishing cavities 16 are formed between the arc-extinguishing grid plates 6.

In this embodiment: arc extinguishing cavities 16 are formed by the multiple groups of arc extinguishing grid pieces 6 in parallel, and the arc extinguishing cavities 16 are formed to play the role of arc extinguishing.

Specifically, referring to fig. 1, a plurality of heat dissipation holes 17 are formed on two sides of the housing 1 and located outside the arc extinguish chamber 2.

In this embodiment: the heat dissipation holes 17 play a role in heat dissipation and exhaust, and the heat dissipation holes 17 are arranged outside the arc extinguish chamber 2, so that the temperature in the arc extinguish chamber 2 is not too high easily.

Specifically, referring to fig. 3, the arc extinguish chamber 2, the power supply chamber 10 and the electronic components inside the control chamber 12 are connected by conductors and are communicated with each other.

In this embodiment: the electronic components in the arc extinguish chamber 2, the power supply chamber 10 and the control chamber 12 are connected through conductors, so that the assembly is convenient and reliable.

Specifically, referring to fig. 1-3, the housing 1 is made of an insulating material, and an insulating layer is disposed on the top end and the bottom end of the housing 1.

In this embodiment: the case 1 is made of an insulating material so that the case can eliminate the harmful influence on the circuit breaker and human bodies when the electric arc is blown out.

Specifically, referring to fig. 1-3, the conductive plate 8 has a plurality of connection holes 18, and the connection holes 18 have the same size.

In this embodiment: the plurality of connecting holes 18 formed on the conductive plate 8 play a role of conveniently connecting an external power supply, and the reliability of the low-voltage circuit breaker is improved.

The utility model discloses a theory of operation and use flow: before the utility model works, firstly, the arc extinguish chamber 2 is arranged inside the shell 1, then the bottom plate 3 is arranged at the bottom of the arc extinguish chamber 2, then the side plates 4 are arranged at both sides of the arc extinguish chamber 2, then the arc striking plate 5 is arranged at the top of the arc extinguish chamber 2, the shell 1 plays a role of protecting the arc extinguish chamber 2 from being damaged easily, the arc extinguish chamber 2 plays a role of arc extinguishing, the bottom plate 3 plays a role of fixing the arc extinguish chamber 2, the side plates 4 play a role of protecting the arc extinguish chamber 2, the arc striking plate 5 plays a role of arc striking, by arranging a plurality of groups of arc extinguishing grid sheets 6 inside the arc extinguish chamber 2, and the arc extinguishing grid sheets 6 are positioned between the bottom plate 3 and the arc striking plate 5, then a plurality of power supply connecting seats 7 are arranged outside the arc extinguish chamber 2, then the current conducting plate 8 is arranged in the power supply connecting seats 7, then the insulating baffle 9 is arranged, the power supply connecting seat 7 plays a role of fixing the conductive plate 8, the conductive plate 8 plays a role of connecting an external power supply, the insulating baffle 9 plays a role of protecting the shell 1, the power supply chamber 10 is arranged at the front end of the arc extinguish chamber 2, the power supply chamber 10 is fixedly connected with the arc extinguish chamber 2 through the buckle 11, the control chamber 12 is arranged at the front end of the power supply chamber 10, the control switch 13 is arranged on the control chamber 12, the shell switch 14 is arranged below the control switch 13, the display screen 15 is arranged below the shell switch 14, the power supply chamber 10 plays a role of electrifying, the buckle 11 plays a role of fixedly connecting the power supply chamber 10 and the arc extinguish chamber 2, the control chamber 12 plays a role of controlling the utility model, the control switch 13 plays a role of controlling the work of the utility model, the shell switch 14 plays a role of opening the shell 1, the display screen 15 plays a role of displaying the work state, the arc extinguishing structure can be assembled by the circuit breaker and is convenient and reliable to assemble with a low-voltage circuit breaker, arc extinguishing is rapid and thorough, filtering and cooling heat dissipation are sufficient, breaking performance of the low-voltage circuit breaker is improved, and harmful influences on the circuit breaker and a person when electric arcs are fleed are eliminated.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a low-voltage circuit breaker explosion chamber structure, includes casing (1), the inside of casing (1) is equipped with explosion chamber (2), its characterized in that: the bottom of the arc extinguish chamber (2) is provided with a bottom plate (3), the two sides of the arc extinguish chamber (2) are provided with side plates (4), the top of the arc extinguish chamber (2) is provided with an arc striking plate (5), a plurality of groups of arc extinguishing grid pieces (6) are arranged in the arc extinguish chamber (2), the plurality of groups of arc extinguishing grid pieces (6) are positioned between the bottom plate (3) and the arc striking plate (5), the outer side of the arc extinguish chamber (2) is provided with a plurality of power supply connecting seats (7), a current conducting plate (8) is arranged in the power supply connecting seats (7), an insulating baffle plate (9) is arranged between the power supply connecting seats (7), the front end of the arc extinguish chamber (2) is provided with a power supply chamber (10), the power supply chamber (10) is fixedly connected with the arc extinguish chamber (2) through a buckle (11), the front end of the power supply chamber (10), a shell switch (14) is arranged below the control switch (13), and a display screen (15) is arranged below the shell switch (14).

2. Arc chute structure for low-voltage circuit breakers, according to claim 1, characterized in that: the multiple groups of arc-extinguishing grid plates (6) are parallel to each other, and arc-extinguishing cavities (16) are formed among the arc-extinguishing grid plates (6).

3. Arc chute structure for low-voltage circuit breakers, according to claim 1, characterized in that: a plurality of heat dissipation holes (17) are formed in the two sides of the shell (1) and are located on the outer side of the arc extinguish chamber (2).

4. Arc chute structure for low-voltage circuit breakers, according to claim 1, characterized in that: and electronic elements in the arc extinguish chamber (2), the power supply chamber (10) and the control chamber (12) are connected through conductors and are communicated with each other.

5. Arc chute structure for low-voltage circuit breakers, according to claim 1, characterized in that: the shell (1) is made of insulating materials, and insulating layers are arranged at the top end and the bottom end of the shell (1).

6. Arc chute structure for low-voltage circuit breakers, according to claim 1, characterized in that: the conducting plate (8) is provided with a plurality of connecting holes (18), and the connecting holes (18) are the same in size.